Lamp head



FIG. 1 is a perspective view from the side of a lamp head in accordance with my design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines showing the lamp base are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a lamp head, as shown and described. 